Home / 257,567.16-355,439.34-144,388.92

Finding the Fourth Proportional to 257,567.16, 355,439.34 and 144,388.92

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Solution

The fourth proportional to 257,567.16, 355,439.34 and 144,388.92 is: 199,254.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,567.16 : 355,439.34 = 144,388.92 : x
  2. Step 2: Convert to fraction form
    257,567.16/355,439.34 = 144,388.92/x
  3. Step 3: Cross multiply
    257,567.16x = 355,439.34 × 144,388.92
  4. Step 4: Simplify right side
    257,567.16x = 51,321,502,428.11
  5. Step 5: Solve for x
    x = 51,321,502,428.11/257,567.16
  6. Step 6: Final answer
    x = 199,254.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.